Where is the purge valve located?
The Canister purge control valve is most often located in the engine bay on a hose going from the intake to the canister. It can also be located near the fuel tank.
How do I know if my purge valve is stuck open?
The most common problem with the purge valve is when it sticks or does not close fully. This may cause the “Check Engine” warning light to come on. In some cars, a stuck-open purge valve can cause difficulty starting right after refueling at a gas station: for the first few seconds the engine may run rough and stumble.
What happens if purge valve is stuck closed?
When a canister purge valve is stuck in the closed position, it will prevent the system from burning the evaporated fuel in the engine. This will cause a low purge flow code and can cause premature failure of the charcoal canister in the evaporative emissions system.
Is it easy to replace a purge valve?
The canister purge valve replacement and the cost ro replace the purge valve is generally a simple and easy procedure, since there might be just one valve to replace in your car. However, you might have to end up paying for additional repairs and parts that are related to the purge valve replacement.
Where is the purge valve in a car?
There is a vacuum line that connects the intake manifold with the charcoal canister that contains the fuel vapors. The purge valve lies within the vacuum line to allow these vapors into the intake manifold at the appropriate time. Older vehicles use vacuum operated purge valves while newer vehicles used electronically operated ones.
Where is the purge valve on a Subaru Impreza?
The Canister vent valve solenoid/Drain Valve (top of pic next to the cylindrical drain filter) and the pressure control solenoid on the lower right located in back of the car, the Charcoal Canister (underneath everything) and the purge valve control solenoid (the separate part w/the hose) from the intake manifold. See attached.
How does the vapor canister purge valve work?
The Evaporative Emission Control system features a vapor canister purge valve which manages the quantity of fuel vapor coming out of the charcoal canister. The purge valve used to be controlled with a vacuum but now, newer cars allow the engine control unit to electronically control it.
What to do if your purge valve doesn’t seal?
Blow air through the purge solenoid while in test mode to make sure it seals properly. If it doesn’t seal properly you can try blowing some compressed air through the ports to dislodge any crud that may be in the valve. Some of the purge valves you can disassemble and clean the valve seat and the bore it sits in.